Vallejo, California 

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Climate in Vallejo, California

Vallejo, California gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Vallejo averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 258 sunny days per year in Vallejo. The US average is 205 sunny days.

Vallejo gets some kind of precipitation, on average, 65 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 84 degrees
Winter Low: the January low is 38
Rain: averages 21 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for Vallejo is 8.4 (10=best), which means it is more comfortable than most places in California.

8.4 / 10
September, August and June are the most pleasant months in Vallejo, while January and December are the least comfortable months.

Climate Averages
  Vallejo, CaliforniaUnited States
  21.4 in.38.1 in.
  0.0 in.27.8 in.
  65.0 days106.2 days
  258 days205 days
  69 ft.2443 ft.


Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

August is the hottest month for Vallejo with an average high temperature of 84.1°, which ranks it as cooler than most places in California. In Vallejo, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Vallejo are May, October and June.

December has the coldest nighttime temperatures for Vallejo with an average of 37.2°. This is about average compared to other places in California.

In Vallejo, there are 29.8 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Vallejo, there are 21.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Vallejo, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

January is the wettest month in Vallejo with 4.3 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 21.4 inches in Vallejo means that it is wetter than most places in California.

December is the rainiest month in Vallejo with 11.5 days of rain, and July is the driest month with only 0.1 rainy days. There are 65.0 rainy days annually in Vallejo, which is rainier than most places in California. The rainiest season is Spring when it rains 52% of the time and the driest is Autumn with only a 2% chance of a rainy day.

There is rarely any recorded snowfall in Vallejo, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Vallejo.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Vallejo    32 Reviews
    Well-polished squalor. - 6/4/2020
    If you move to Vallejo, you will quickly realize that you're paying a lot of money to live in well-polished squalor. I moved to Vallejo in mid-2008 just as the city... Read More

    Start Your Review of Vallejo

    If I could move I would - 10/1/2018
    I would love to live in a place where there are not fireworks all year round or gunshots every night. Police are understaffed and overworked and this is coming from a... Read More

    Phoenix Rising - 2/16/2018
    I've lived in Vallejo for 5 years I moved here from Alameda California where I spent about 3 years and before that was in Seattle for 18 years. People said to... Read More

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